Update consumer references in documentation

Signed-off-by: Daniel Zullo <[email protected]>

Author: daniel-zullo-frequenz

docs/user-guide/glossary.md

@@ -167,7 +167,7 @@ the component graph are:
 
   - figure out how to calculate high level metrics like
 [`grid_power`][frequenz.sdk.timeseries.grid.Grid.power],
-[`consumer_power`][frequenz.sdk.timeseries.logical_meter.LogicalMeter.consumer_power],
+[`consumer_power`][frequenz.sdk.timeseries.consumer.Consumer.power],
 etc. for a microgrid, using the available components.
   - identify the available {{glossary("battery", "batteries")}} or
     {{glossary("EV charger", "EV chargers")}} at a site that can be controlled.

src/frequenz/sdk/timeseries/formula_engine/_formula_engine.py

@@ -232,7 +232,7 @@ class FormulaEngine(
 
     They are used in the SDK to calculate and stream metrics like
     [`grid_power`][frequenz.sdk.timeseries.grid.Grid.power],
-    [`consumer_power`][frequenz.sdk.timeseries.logical_meter.LogicalMeter.consumer_power],
+    [`consumer_power`][frequenz.sdk.timeseries.consumer.Consumer.power],
     etc., which are building blocks of the
     [Frequenz SDK Microgrid Model][frequenz.sdk.microgrid--frequenz-sdk-microgrid-model].
 
@@ -333,9 +333,7 @@ def from_receiver(
 
             async def run() -> None:
                 producer_power_engine = microgrid.logical_meter().producer_power
-                consumer_power_recv = (
-                    microgrid.logical_meter().consumer_power.new_receiver()
-                )
+                consumer_power_recv = microgrid.consumer().power.new_receiver()
 
                 excess_power_recv = (
                     (